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RESTRUCTURING (Details) (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
2009 Restructuring Plan
Dec. 31, 2011
2009 Restructuring Plan
Jun. 09, 2009
2009 Restructuring Plan
Workforce Reduction
Dec. 31, 2012
2009 Restructuring Plan
Workforce Reduction
Dec. 31, 2011
2009 Restructuring Plan
Workforce Reduction
item
Jun. 09, 2009
2009 Restructuring Plan
Workforce Reduction
China and United States
item
Dec. 31, 2012
2009 Restructuring Plan
Lease Costs
Dec. 31, 2011
2009 Restructuring Plan
Lease Costs
Dec. 31, 2011
2008 Restructuring Plan
Dec. 31, 2008
2008 Restructuring Plan
Dec. 31, 2011
2008 Restructuring Plan
Workforce Reduction
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
item
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
China
item
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
Korea
item
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
Other locations
item
Restructuring                                  
Reduction in workforce as a percentage of the company's headcount         50.00%                        
Reduction in workforce             50 2,300           750 350 200 200
Reversal of restructuring charges     $ 200,000 $ 1,600,000                          
Total restructuring costs recorded     58,400,000               19,700,000            
Activity in the accrued restructuring balances related to the plans                                  
Balance at the beginning of the period 1,692,000 11,417,000 1,692,000 11,396,000   231,000 9,425,000   1,461,000 1,971,000 21,000   21,000        
Restructuring Charges 358,000 2,386,000 358,000 2,364,000   49,000 2,052,000   309,000 312,000 22,000 13,100,000 22,000        
Cash Payments (2,050,000) (12,111,000) (2,050,000) (12,068,000)   (280,000) (11,246,000)   (1,770,000) (822,000) (43,000)   (43,000)        
Balance at the end of the period   $ 1,692,000   $ 1,692,000     $ 231,000     $ 1,461,000